Malicious PDF — malware analysis report

Static analysis result for SHA-256 b114b736d1253251…

MALICIOUS

PDF

65.2 KB Created: 2021-02-23 17:58:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7db7ae6ec90e9bc6923d4fda2e927e7d SHA-1: 37ea9c4d6a140c1940028e9b2ae5ae046980e096 SHA-256: b114b736d1253251241acaf8641aca7f4f76fdfe6c16c9012e6e4c4c8b816e31
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/wix?keyword=emerson+lc320em2f+remote PDF link annotation
    • https://cdn.sqhk.co/zasemewiti/jbTPkij/battery_day_tesla_2020_youtube.pdfIn PDF document text
    • http://mananeje.66ghz.com/double_bar_graph_worksheets_grade_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487623/normal_5fe275f569914.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495264/normal_5fff6b7ee2145.pdfIn PDF document text
    • http://wavakuxakuxom.66ghz.com/scary_phone_call_yahoo_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480590/normal_6012c33eea970.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365652/normal_5fe0253851195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381964/normal_601d59fb83bfd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kipixuge.epizy.com/xexekatigoredur.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/calico_flannel_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/jigapox.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/hcv_treatment_guidelines_2017_in_egypt_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/minecraft_mod_1._7_10_craft_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/side_effects_coming_off_metformin_pcos.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B9 5212 bytes
SHA-256: c457a9e880e013d289762075d6cff2e783ce770dc157eac86128a26ce4442e7f
font_01_sfnt_off0000d466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD466 10088 bytes
SHA-256: 62baf1596d955dfad07c8184ae9a849ad34098b5e0f4d9e78e4c9d4b2d2e7f07